Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 1 · 40 sums

The trick (Ekanyunena Purvena): Write the number with as many digits as there are nines (add zeros in front if needed). Left part: the number minus 1. Right part: “all from 9 and the last from 10” of the number. More digits than the nines (237 × 99)? Split off as many digits as there are nines (2 | 37): left = number − (front part + 1) = 234, right = complement of 37 = 63 → 23463.

1. 1.231 × 999 =
2. 2.3 × 9 =
3. 3.21071 × 999 =
4. 4.1712 × 99 =
5. 5.97 × 99 =
6. 6.49 × 9 =
7. 7.894 × 99 =
8. 8.14677 × 999 =
9. 9.71 × 99 =
10. 10.62 × 99 =
11. 11.61 × 99 =
12. 12.6 × 9 =
13. 13.6 × 9 =
14. 14.665 × 999 =
15. 15.11 × 99 =
16. 16.224 × 9 =
17. 17.49 × 99 =
18. 18.39 × 99 =
19. 19.143 × 9 =
20. 20.17589 × 999 =
21. 21.122 × 99 =
22. 22.55 × 99 =
23. 23.27285 × 999 =
24. 24.7 × 9 =
25. 25.8861 × 999 =
26. 26.28821 × 999 =
27. 27.27 × 99 =
28. 28.2 × 9 =
29. 29.8 × 9 =
30. 30.7 × 9 =
31. 31.2 × 99 =
32. 32.714 × 999 =
33. 33.161 × 9 =
34. 34.6 × 9 =
35. 35.97 × 9 =
36. 36.224 × 9 =
37. 37.504 × 999 =
38. 38.51 × 99 =
39. 39.4 × 9 =
40. 40.14967 × 999 =

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